Remove from example

Manishearth · Manishearth · commit be647b5a49f1 · 2019-06-20T07:22:39.000-07:00
diff --git a/src/lib.rs b/src/lib.rs
@@ -12,8 +12,6 @@
 //! to the [Unicode Standard Annex #29](http://www.unicode.org/reports/tr29/) rules.
 //!
 //! ```rust
-//! extern crate unicode_segmentation;
-//!
 //! use unicode_segmentation::UnicodeSegmentation;
 //!
 //! fn main() {
